content: /*
   * Copyright 2017 David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.reactive4javaflow.impl.operators;
  
  import hu.akarnokd.reactive4javaflow.*;
  import hu.akarnokd.reactive4javaflow.functionals.CheckedFunction;
  import hu.akarnokd.reactive4javaflow.impl.EmptySubscription;
  
  import java.util.Arrays;
  import java.util.concurrent.Flow;
  
  public final class FolyamZipIterable<T, R> extends Folyam<R> {
  
      final Iterable<? extends Flow.Publisher<? extends T>> sources;
  
      final CheckedFunction<? super Object[], ? extends R> zipper;
  
      final int prefetch;
  
      final boolean delayError;
  
      public FolyamZipIterable(Iterable<? extends Flow.Publisher<? extends T>> sources, CheckedFunction<? super Object[], ? extends R> zipper, int prefetch, boolean delayError) {
          this.sources = sources;
          this.zipper = zipper;
          this.prefetch = prefetch;
          this.delayError = delayError;
      }
  
      @Override
      protected void subscribeActual(FolyamSubscriber<? super R> s) {
          Flow.Publisher<? extends T>[] srcs = new Flow.Publisher[8];
          int n = 0;
          try {
              for (Flow.Publisher<? extends T> p : sources) {
                  if (n == srcs.length) {
                      srcs = Arrays.copyOf(srcs, n + (n >> 2));
                  }
                  srcs[n++] = p;
              }
          } catch (Throwable ex) {
              FolyamPlugins.handleFatal(ex);
              EmptySubscription.error(s, ex);
              return;
          }
          FolyamZipArray.subscribe(srcs, n, s, zipper, prefetch, delayError);
      }
  }
  